Abstract This study was conducted to treat the Sudanese crude oil from Rawat area southwest of Kosti which has a high wax content of 26.3% by weight and pour point 54°C, in order to remove the wax and to reduce the pour point and enhance the physical and molecular properties of the treated oil using organic solvent de-waxing technology. The physical and molecular properties of crude oil and the oils produced from the treatments were obtained using American Society for Testing and Materials ...
Abstract The objective ofthis study is to characterize and analyse threedifferent samples of polypropylene of which one was collected from Elkherat Factory (Omdurman) and two from Khartoum Petrochemical Company .The flame test of these three samples, gave a blue – yellow colour. The results of melt flow rateof these sampleswere 2.63g/20 min , 2.71gminand 2.99g/20 min, respecvely.The results of melting point were 149 ◌C, 152 ◌c and- 160 ◌c. The results of bulk density were 0...
ABSTRACT The spatial and temporal variations of fine particulate matter bound trace metals were investigated in three industrial estates namely Ota Industrial Estate (OTE), Ewekoro Community (EWC) and Agbara Industrial Estate (AGE) and one background (Covenant University Farm Ota) in Ogun State. The sampling period was six (6) months covering the wet and dry seasons. One hundred and fifty (150) samples were collected according to standard methods using environtech gravimetric sampler, a...
Abstract Background and Aim of the study: antiepileptic drugs such as valproic acid (VPA) and carbamazepine (CBZ) may disrupt renal function. Plama Urea and creatinine may reflect renal dysfunction and may be useful in detecting renal injury. The aim of this study was to determine the levels of plasma urea and creatinine in Sudanese children used antiepileptic drugs (CBZ and VPA). Materials and Methods: this was cross sectional comparative study, conducted from May to September 2019, at Soba...
Abstract In this research work a feasible titanium dioxide photo-catalytic technology for removal of dyes from wastewater was explored in four stages; the synthesis and characterization of two catalysts, optimization of parameters influencing the photo-catalytic process, photo-decolortization process of four different dyes have been investigated to effect of each catalysts and kinetic studies of photo-decolorization of the dyes. The results showed that sol-gel method along with and using tit...
Abstract GC-MS technique was used for determination of chemical constituents of the doum fruit extract. Doum fruits Powder was analyzed by an X-ray fluorescence to determine the major available elemental constituents. The results of GC-MS analysis showed presence of (34) chemical components. The main constituents were Tris(hydroxymethyl) nitromethane (27.67%), 3-omethyl- D-glucose (15.33%), 5-Hydroxymethylfurfural (7.49%), dl-Glyceraldehde dimer (4.19%)and Maltol (3.24%). XRFanalysis indicat...
Abstract In the present study , the fixed oil of Citrullus Colocynthis was extracted from seeds . The oil was analyzed by gas chromatography – mass spectrometry (GC-MS) and 41 components were identified and quantified. Major constituents were :9,12 –octadecanoic acid methyl ester (39.30%),hexadecanoic acid methyl ester (15.82%),methyl stearate (13,39%)and 9-octadecanoic acid methyl ester (12.51%). Theoil was screened for antibacterial and antifungal activities and different antimicrobial ...
ABSTRACT The aim of this study was to investigate the possibility of removing acids from Sudanese heavy crude oil which is characterized by acid number more than 7 mg KOH/g by liquid-liquid extraction technique. In this work polar organic solvents (methanol and ethanol) was used. The processes were applied at different temperatures and organic solvents volumes. The optimum solvent, solvent ratio and temperature were determined. The physical and chemical properties of crude oil sample were te...
Abstract The oil from Coffea Arabica was analyzed by GC-MS.The analysis showed 22 components. The major components are: Hexadecanoic acid, methyl ester (31.84%), 9,12- Octadecadienoic acid (Z,Z)-, methyl ester (%31.46), 9-Octadecanoic acid methyl ester (17.40%), Methyl stearate (10.84%), Eicosanoic acid methyl ester (5.04%). Antimicrobial activity of Coffea Arabica oil was conducted. The oil showed significant activity against Bacillus subtilis, moderate activity against Staphylococcus aureu...
Abstract Moringa oleifera Lam. tree grows in many tropical and subtropical countries. The seed, leaves, root and flowers of M. oleifera are often used in traditional medicine, while the immature pods, leaves and seed are used as nutrition products in human food. This study carried out proximate analysis for mineral elements assessment in dried M. oleifera leaves. Fresh leaves of M. oleifera lam were plucked from M. oleifera trees in River Nile State (Atbara Town). Analyzed for the mineral el...
Abstract The aim of this study was to investigate the chemical composition of kidney stones obtained from some Sudanese patients. The samples were collected after surgical removal. The samples were analyzed by FTIR and XRF spectroscopic techniques. Titrimetric analysis was carried for determination of oxalate content using standard potassium permanganate solution. The IR analysis spectra of the samples showed the appearance of (C-H), (C=O), (O-C), (N-H), (C-C), (P-CH2), (C=C), (P= O), (R-O),...
Abstract Heavy metals are known to be toxic for living organisms even if they are present at low levels. The presence of heavy metals, organic dyes and microbial pollutants in water continue to be a major concern and the removal of such contaminants is considered to be a major problem in environmental remediation. In the present study, activated graphite was used for removal of some heavy metal ions from aqueous solutions by batch adsorption method. The adsorption efficiency of removal of he...
Abstract The advantages of DNA typing and its use for human identity testing has revolutionized law enforcement investigations in recent years by allowing forensic laboratories to match suspects with minuscule amounts of biological evidence from a crime scene. Equally important is the use of DNA to exclude suspects who were not involved in a crime or to identify the rapist in sexual crimes and in paternity cases from different samples (Evidences) from different cases were collected and extr...
Abstract In this research from Azadirachta Indica (Wild) , neem gum was fractionated by foaming method into two fractions, high protein fraction (HPF) that represents 65% of the weight gum and a low protein fraction (LPF) which represents 35% of the gum. A comparative study between the crude gum and the two fractions was conducted in the scope of their physiochemical properties. Proximate analysis of the crude gum and fractions HPF and LPF respectively revealed that, the moisture content 7.5...
Abstract This study was carried out to investigate the accumulative levels of Pb, Cr, Cd, Ni and Cu in roadside topsoil of three major streets in Khartoum State and the relation between the concentration of these metals and soil chemical properties. The collected roadsides topsoil samples were prepared with an improved closed wet digestion system and the heavy metals concentrations in the extracts were determined using flame atomic absorption spectrometry. The mean concentration ranges of me...